Min weisbart



lL. STERN.

v LOCK.

APPLICATION FILED'APR. 30. 192i.

10U/11e Sern/ ffy i.. SE'N.

LOCK. APPLICATION FILED AFR. 30, 1921.

l ,426, 1 22. Patented Aug. 15, 1922.

' 2 SHEETS-SHEET 2.

f4 l 4\(% lzbl l I ZL J Z9 fr 30 wl jg k2 6 ja l LLL 3 Q Z l5 Z5 L l@ 'W' f? 3/ 3 l 5F10 4/ I a l w nl' l? 1'? Inventor louie Stern 1y zum" :w GM

hisAorngy.

' 1 l 'Appli'cationrled April 30, 1921.1

z .STATES f i,oULEfsTEitN,y 'or NEW YORK, N. Y Assrfriortirostaartje 'wrzsnanag orf 'YORK, N. Y., 'A PARTNERSHIP coMPosEDor saID ,nourrir` STERN AND' BENJA- 1 "MIN WEISBART'.

To allwhom it vmay concern: r

Be itknown'thatl, Loom STERN, acitizen of .the United States, and -a ,-residentof New York,-borough 'otManhattam in the county of New Yorkandj State of NewYork, have invented .certain new and useful Improvements in Locks, of whichuthe, following. 1s a'speciiication.;`

" This invention, relates to looks, and Iparticularly to that class thereofy which employs apair-` of opposed bolts, movable in opposite directions, for yengaging, al keeper.. The objecty of my ,improvements is tol provide a lock :ofltheclassfspeciiied, of simple constructionfand having means for coaction with thekeeper.,foncausingthe bolts to engage thekeeper,automatically. l

- iithvtheseJendsin view, my improvements comprise features illustratedl in .their preferred embodiment inthe-accompanying drawings, wherein/:,-

l v Y fligure v1f is a sectionaly view taken'substantiallyyon line ;1-1-,ofqFig. 2, showingthetlock-in engagement` with` the keeper. ,2 is al sectional vien/,taken ysubst'a-ntially onulinei2-f2 of Ffig..1, showing the several parts .in .fthefsamef relative .I positions as in Fig.,1,. Fig. Sis arlsectional view similar to that ofi-iig.l 2, but showing the parts in dif,- ferent v poc'sitions-- than in theA earlier views.y The scale of allthreejviews is, the same.

`The present 'inventionisin the nature of improvements on the inventionset vforth, in

Letters-'Patent of kthe United States No. 1,215,888, granted2 to-me February 13,1917,

` other member which it is desired to fasten by means of said lock, to an adjoining abutment or jamb as 6, and to which latter is secured keeper 7 by screws 8. Within said casing is bolt 9, or a pair of bolts 9, 10, carried by shanks 11, 12, respectively. Preferably, and as illustrated, said bolts are in axial alignment, and said shanks are mount` Specification of Letters 'Patenti mme Aug. 1 5, 19122.

seriainapaesmz. 1 1' n ed and 4guided for movementin parallelism 55 with thecommon axis .of said bolts. .Said shan ks-are rurged inwardly I toward -each lother by lpush springs 13, 141;, respectively. Said Shanks, arepreferably. of l. shape, -their tails 1,5,16respective1y,1;being turned,A inwardly 60 toward each .other and.' overlap'ping;.shank 11,A Ibeing materially: 'longer f1-,than shankl 12, whereby.{saidtailsnot only overlap without 0S: interference but space is provided' therebetvelifor upstanding portion 17 of c`ase3, 65 thefparallel edges; of'rwhich serve as lguides for one sideo each o-said tails.' Saidpor'- tigri-A17v also serives .asfpivotblock for'lever it 18-and its rotatableactuator 19. f Saidrleverl 18 is double ended, and each end carries-a 70 pin for engagement with a. slot in the'.tails, respectively,- f ioff i said, shanks, fa's jpin .'20 :in slot 21: offtailfl, and-:pin .22 in slot 23 of M1 tailflf. Il,For holding tailfl in-the position Of 2,01*. in@ ,the position 0f.. Fig.y 3,- s'ld- 75 ingcatchiis providedw. vz

midwa-ybf c'a'se 3, yinVF-igs. 2 and 3, is latch'25g, Imounted-'forreciprocation inra' direction normali 'tol thatofthe direction of movement .offbolts 9.,. 1-0. Said latch,-when 80 bolts" 9, :1,0- are retracted, Fig. z 3,..protr'udes into the space between the' inwardly facing. ends of .said bolts, and which space islargely o occupied, `by keeperf` 7. 5; when the -fcasefz and keeper fai-e brought? Yinto; engaging position, 85 asin- Figs-i and Vhenrso 4broughtinto engagingnpositionyl thebeveledf end. 425a f;- latch 25encounters' said keeperand isforced back, thereby;Y from the positionI of Fig. Sto' that offFfigs, l arid- 2i Said latchfis guided 90 forymovmentwi-n seat-26.=in'case 3, and is also provided with; stem'. 27,.k guided.- :in seat 28am Awall-329fu'pstanding in? casea: Spring. .nu 30 tends to urge said latch outwardly. Said latch is provided with foot 31 for engage- 95 ment with post 32- of shank 12, when that shank is in its retracted position, Fi 3. Keeper i7 lis preferably provided wit a passage 7a therethrough. and which passage is entered at either end by bolts 9, 10, respectively, when the look is operated to engage said keeper. l

The operation of my improved lock is as follows: The parts being in the relative positions of Fig. 3, with latch 25 projectlng 105 lfrom case 3 and foot 31 of said latch in'engagement with post 32 of shank 12, whereby bolts 9, 10 are maintained in their retracted positions, respectively, door V5 `is moved downwardly, Fig. 1, thereby causi bev-` eledend EL oflatch 25 to encounter the pressure of spring 30. As that latch is forced backwardly to the left, foot 31 there;

of rides 0H post 32, thereby permitting springs `13, 14 to act against shanks 11, 12, respectively, and whereby those Shanks and their respective bolts 9, 10 are Aforced vtoward each other into engagement with keeper 7, as shown in Fi 2. The movement ofshanks `11,112 from t epositions of Fig. 3't'those of Fig. 2 will swin lever 18 from the position of Fig. 3 to t at of Fig. 2. For unlocking,`actuator`19, or the key actuated'barrel, may be turned to move lever 18 and Shanks 11, 12 from the positions of Fig.` 2 to those yof Fig, therebyV withdrawing bolts 9,;10 from engagement with keeper' 7. Then if'the door be opened, latch 25 will be forced outwardlyby ,Spring operation.

thereby causing foot y31 to pass onto post 32 ofl shank `12,'i`vhereby said bolts will be heldfintheir retracted positions, respectively,"ready for' a repetition of the described 'Irclaimf e j f i 1. A lockzincludingincombination a pair of opposed 1 bolts, spring means forV urging said bolts toward each otherya latch adapt.

ed'for-movementl transversely tothe direction of movement *of-said bo'ltsp' spring means for urging said latch in one direction,

means" on said 1 latch for engagement with onegofsaid bolts for'holding saidbolt in retracted` position, and" means connecting said bolts and adapted? for 'causing said bolts tovimove in unisonin opposite directioiis.` l2.; Ailock `including in combination a pair of opposed bolts, lspring ymeans `for urging f' said bolts toward each lother, a latch adapted: forV movement transversely tojthe direction of movement of4 said bolts, spring means i saidV latch in kone direction," meanso'n ."saidflatch for engagement-with' "if one'v ofsaid fboltsfor holding saidbolt inl retracted position, 4'means connectingl'said for urging bolts andadapted 'for'fcausin said bolts to move-in uiiisonin -opposite irections, and

, @Per 7 and be forced backwardly thereby against means for locking said bolts ineither 7`their retracted or extended positions, respectively.

y3. A lock including in combination a -pair of opposed bolts each carried by avshank,

vmeans for guiding said Shanks for parallel with said'keper for movingsaid latch for releasing the shankfheld in .retracted `position by said latch. v

4, A lock including in combination a pair of opposed bolts, spring means for urging said bolts relatively toward each other. a

latch normally between said bolts adapted for ymovement transversely tothe direction of movement of said bolts, spring means for urgingsaid latchin one direction, means on said latch for engagement with one of said bolts for holding said bolt in retracted position and meansconnectingsaid bolts adapted for causing said bolts to move in unisonin oppositedireotions l 1 l '5; A lockincluding in combination a, pair of opposed bolts each, carriedfby a shank,

means 4for lguiding said Shanks for parallel movement, springvmeans for urgingsaid Shanks relatively toward each other, handy actuated means "for moving` saidl Shanks against their` spring urging means, a latch between said shanks Amounted for movement transversely tothe direction of movement of' said yshanks, spring means `for urgi'ngsaid latch'in onefdirection, means on `said latch for holdingone rof said Shanks in retracted position, -a keeper for receiving said bolts, andlmeans on said latch for'engagement with said keeper for moving said latchfor releasing the lshank heldin retracted position "by said latch.

In witness whereof, I hereby 4aliiii inyi signature 'this 29th day of A ril, 1921.l

' Lo 1E STERN. 

